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Letters Patent No. 81,414, time August 25, 1868.

IMPROVED GAR-BRAKE.

an gtlgthltlt new tn in its; Etrtters attteuttnt mating tart ttttr tame.

TO ALLWHOM IT MAY CONCERN:

Be it known that I, S. W. Y. SCIIIMONSKY, of Cheyenne, in the county of Laramie, and Territory of Dakota, have invented a new and useful Improvement in Oar-Brakes; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled inthc art to make and use the same,

. reference being had to the accompanying drawings, forming part of-this specification, in which- Figure 1 is a side sectional view of a car-truck having my invention applied to it.

Figure 2 is a transverse vertical section of the same, taken in the'line x fig. 1.

Similar letters of reference indicate like parts.

This invention relates to a new and improved brake for railway-cars.

It consists in a novel construction of the same, whereby the principle of the'wedge is applied to the shoes, and the brake rendered nearly self-acting and entirely self-locking.

The object of the invention is' to obtain a brake which will be etficient in its action, strong, and notliable to get out of repair, and which may be applied with a very slight efi'ort or expenditure of power.

In the accompanyingsheet of drawings A represents a portionof a car truck, B one axle thereof,-and 0 one of the wheels thereon. These parts may be of usual construction, and therefore do not require a special description.

, '1) represents a sliding frame, placed in a horizontal position in the truck-frame, above the wheels G, and i has wheels, E, attached to it, at each sideoi' its upper part, said wheels running on ways F, secured to the sides of the truck-frame. g n v j v To each side of the frame D there are attached two shoes, G G, which are at opposite sides of the wheel.

These shoes are concave at their face sides, forming portions of circles, concentric with the wheel, and their concave surfaces are above the axle B, as shown clearly in fig. 1. v

The shoes G G ofeach wheel are placed at such a distance apart that but one of them only can be applied to the wheel at thesame ti'me.' When one is applied, the otheris moved ofi' from the wheel, as shown clearly in fig. 1, and either shoe may be applied by moving the sliding frame D, which is done by a lever, H, the lever-- end of which is connected to the frame by arod, I.

When the car. is moving in the direction indicated by the arrow, audit is desired to stop the car, the frame D is moved to bring theshoes G, at the rear side of the wheels, in contact with the same, there cbntact being all that is required, for the shoes brought in contactwith the wheels will, under the rotation ofthe latter, become wedged in between the upper parts of the wheels and the ways F, or other sui tcble fixture, and the wheels become locked eil'ectively. I

When the car is moving in the opposite direction, the other shoes G, at the opposite sides of the wheels, are, of course, applied, and, in order to have the shoes at both sides of the wheels free from the latter, the lever H is adjusted in a horizontal position, and retained in that position by a button, a, on the platform, which is fitted in a toothed segmentfl), on the fulcrum-shaft, c, of the lever. g

It will be readily seen that the brakes of both trucks of a car may be connected without any ditficulty, so that they may all be operated simultaneously.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent-' The brake-shoes G, rigidly attached to the frame D, sliding through the wheels E, upon the guides F, and; attached to the lover I, all operating as described, whereby the shoes G are alternately wcdgedupon each side of the wheel, between the same and the guide F, as the lever is operated in either direction, as herein shown and described. 1

' S. W. Y. SGHIMONSKY.

Witnesses:

V FRANK Lnu,

D'. E. Dnnvnns. 

